Preheat the oven to 425°F (220°C).
In a mixing bowl, combine the soy sauce, honey, olive oil, minced garlic, ground ginger, salt, and pepper. Whisk until well mixed.
Place the chicken breasts in the same mixing bowl and coat them evenly with the marinade. Allow them to marinate for about 10 minutes.
While the chicken is marinating, prepare the vegetables. Cut the bell peppers and onion into desired sizes and place them on the sheet pan.
Add the marinated chicken breasts to the sheet pan, placing them among the vegetables.
Scatter the fresh pineapple chunks over the chicken and vegetables.
Pour any remaining marinade from the mixing bowl over the chicken and veggies.
Bake in the preheated oven for 25 minutes or until the chicken is cooked through and the vegetables are tender. Check that the internal temperature of the chicken reaches 165°F (74°C).
Remove from the oven and let it rest for a few minutes before serving.
Garnish with fresh cilantro or chopped green onions if desired.